The Jalopy Journal
Discussion in 'The Hokey Ass Message Board' started by Jingles, Jun 11, 2012.
Does anyone know if there is a setup that uses a power steering pump to also operate power brakes?
Some trucks definatly use it, I think International Harvester.
GM hydraboost as found on trucks is one.
My 1983 GMC (Diesel) Suburban had a power brake booster that used the steering pump. The older diesels do not produce enough manifold vacuum (it's an efficiency thing...) for a standard power brake booster.
My '05 GMC 4500 has a combo power brake/power steering unit. Heavier, (1 ton and up) Ford trucks use a similar set up.
Ditto the GM Hydroboost units.
GM trucks and some G vans. as an alternative you can also buy vacuum pumps
Early diesel Cadillac Eldorado used Hydorboost. Thats the system that I have on my 32 Chevy....Works great with a hot cam that produces low vacuum and easily adapted for under floor mounting. You car read more here.
Chevy Astro van.
My 85 Pontiac full size wagon was that way. I think the 90 Olds was also.
Yes, I've seen several of these on Factory Five Cobras
My 99 Cobra has it and have seen it advertised in after market systems.
Lots of big BMWs have used hydraboost since the late 80s
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